yeah, the jumps of the maykr/makyr world(idk their name) are kind poorly made and not beta tested enought, i kinda never used the autoshotgun upgrade or the micromissiles for example grenade shotgun was fairly superior and a must have for cacodemons until you get the ballista, and bullets are better used on the minigun later in the game aside from some spiderturret sniping. plasmagun was my workhorse with the overheat upgrade, one of the most useful weapons in the game. Chrono rune is cheat i agree i never used it after unlocking it because its ridiculously overpowered, only needed it on the khan maykr boss fight for easy add sniping for must needed heal(a boss harder than the last one btw, that one was easy as fuck and kinda disappointing on difficulty)